I hope to use this thread to help anyone who wants to build one, because when I was looking to build one there was not really any how to's. Fortunately im very mechanically inclined and have a strong grasp on electrical systems (i fix smashed up mercedes for a living) so I was able to figure it out as a went. Hopefully anyone thats interested in making these i can provide some insight into how its done.

so heres a parts list, i think i got everything from amazon because im lazy

Amico AC 10A 250V IEC320 C14 Inlet Module with Neon Lamp Rocker Switch and Fuse Holder (I used a computer power supply cable to plug into this, from the back of the outlet run the power to the switch, then from there to pins 1 and 2 and polarity doesn't matter)

-The gray plate its all mounted to is a 6x6x6 outdoor waterproof junction box from home depot.